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Finding the Fourth Proportional to 124,361.40, 186,473.70 and 84,963

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Solution

The fourth proportional to 124,361.40, 186,473.70 and 84,963 is: 127,397.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,361.40 : 186,473.70 = 84,963 : x
  2. Step 2: Convert to fraction form
    124,361.40/186,473.70 = 84,963/x
  3. Step 3: Cross multiply
    124,361.40x = 186,473.70 × 84,963
  4. Step 4: Simplify right side
    124,361.40x = 15,843,364,973.10
  5. Step 5: Solve for x
    x = 15,843,364,973.10/124,361.40
  6. Step 6: Final answer
    x = 127,397.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.